121343044073 has 2 divisors, whose sum is σ = 121343044074. Its totient is φ = 121343044072.

The previous prime is 121343044061. The next prime is 121343044099. The reversal of 121343044073 is 370440343121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111884898064 + 9458146009 = 334492^2 + 97253^2 .

It is an emirp because it is prime and its reverse (370440343121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121343044073 - 2¹⁸ = 121342781929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121343044973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60671522036 + 60671522037.

It is an arithmetic number, because the mean of its divisors is an integer number (60671522037).

Almost surely, 2^121343044073 is an apocalyptic number.

It is an amenable number.

121343044073 is a deficient number, since it is larger than the sum of its proper divisors (1).

121343044073 is an equidigital number, since it uses as much as digits as its factorization.

121343044073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 32.

Adding to 121343044073 its reverse (370440343121), we get a palindrome (491783387194).

The spelling of 121343044073 in words is "one hundred twenty-one billion, three hundred forty-three million, forty-four thousand, seventy-three".